807620681 has 16 divisors (see below), whose sum is σ = 967920000. Its totient is φ = 659207808.

The previous prime is 807620651. The next prime is 807620777. The reversal of 807620681 is 186026708.

It is a de Polignac number, because none of the positive numbers 2^k-807620681 is a prime.

It is a super-2 number, since 2×807620681² = 1304502328757807522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (807620641) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12431 + ... + 42068.

It is an arithmetic number, because the mean of its divisors is an integer number (60495000).

Almost surely, 2^807620681 is an apocalyptic number.

It is an amenable number.

807620681 is a deficient number, since it is larger than the sum of its proper divisors (160299319).

807620681 is a wasteful number, since it uses less digits than its factorization.

807620681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54608.

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 807620681 is about 28418.6678259203. The cubic root of 807620681 is about 931.2561285665.

The spelling of 807620681 in words is "eight hundred seven million, six hundred twenty thousand, six hundred eighty-one".